SQL Server loop - how do I loop through a set of records By using T-SQL and cursors like this : DECLARE@MyCursorCURSOR;DECLARE@MyFieldYourFieldDataType;BEGINSET@MyCursor=CURSORFORselecttop1000YourFieldfromdbo.t
SQL Server loop - how do I loop through a set of records By using T-SQL and cursors like this : DECLARE@MyCursorCURSOR;DECLARE@MyFieldYourFieldDataType;BEGINSET@MyCursor=CURSORFORselecttop1000YourFieldfromdbo.tablewhereStatusID=7OPEN@MyCursorFETCHNEXTFROM@MyCursorINTO@MyFieldWHILE@@FETCH_STATUS...
Example of Cursor In this example, I have used a cursor to loop through 134,460 records from the table calledCities. Then for this illustration I have printed the data from the individual records. (Of course you do not need a cursor for this operation. However this is just for illustratio...
以下为使用 Server Management Studio 进行对象脚本导出。 方法二:通过 SQL 导出。以下提供常用的导出 SQL 命令。 (1)导出某个库中的全部触发器: DECLARE @trname VARCHAR(100) DECLARE CURSOR_DATA CURSOR FOR SELECT name from sys.all_objects where schema_id=1 AND type = 'TR' open CURSOR_DATA FETCH ...
游标Cursor逻辑运算符和物理运算符用于描述涉及游标操作的查询或更新的执行方式。 其中物理运算符描述用于处理游标(如使用键集驱动游标)的物理实现算法。 游标执行过程的每一步都涉及物理运算符。 而逻辑运算符描述游标的属性,如游标是只读。 逻辑运算符包括Asynchronous、Optimistic、Primary、Read Only、Scroll Locks、...
13. open cursor_part; 14. loop 15. fetch cursor_part into cursor_oldpart; 16. exit when cursor_part%notfound; 17. v_sqlexec:='ALTER TABLE SVRSENSORDATA DROP PARTITION '||cursor_oldpart.partition_name; 18. DBMS_Utility.Exec_DDL_Statement(v_SqlExec); ...
LEAVE read_loop; END IF;--结束标记,在循环体中判断并跳出。 END LOOP;--关闭游标 CLOSE cs1;--游标2 OPEN cs2; SET done=0;--REPEAT循环 REPEAT--FETCH 游标中的列必须要和INTO的列数量和类型一致。--如果游标中没有新的可用行,即Fetch到空行,则会触发NOT FOUND异常,就会把done设置为1。
AvgPageDensityINT, ScanDensityDECIMAL, BestCountINT, ActualCountINT, LogicalFragDECIMAL, ExtentFragDECIMAL);-- Open the cursor.OPEN tables;-- Loop through all the tables in the database.FETCH NEXT FROM tables INTO @tablename; WHILE @@FETCH_STATUS = 0BEGIN-- Do the showcontig of all indexes...
Creating a SQL Server cursor with T-SQL is a consistent method that can process data on a set of rows. Once you learn the steps, you can easily duplicate them with various sets of logic to loop through data. Let’s walk through the steps: ...
(password, "Dmsys_123"); strcpy(servername, "192.168.0.89:5289"); EXEC SQL WHENEVER SQLERROR DO sql_error("DM error--"); EXEC SQL CONNECT :username IDENTIFIED BY :password USING :servername; printf("\nConnected to dm as user: %s\n", username); /* Declare a cursor for the FETCH...